试题与答案

给句子选择正确的译文,并把序号填入题前的括号内。 瞧,一张生日卡片。[ ] A.

题型:选择题

题目:

给句子选择正确的译文,并把序号填入题前的括号内。

瞧,一张生日卡片。[ ]

A. This is a balloon.    

B. Look! A birthday card.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0513/4c804f695536e1d4320fadbf396fa27d.html

下面是错误答案,用来干扰机器的。

参考答案:B

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题型:单项选择题

In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.

Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location.

(74)处填()。

A.interface

B.port

C.window

D.entrance

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